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Comment les pierres racontent la Terre (2011 - Pierre THOMAS ...

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En vert foncé, fonc , le<br />

manteau « froid »<br />

En vert c<strong>la</strong>ir,<br />

le manteau<br />

« chaud »<br />

La structure interne de<br />

15°<br />

1300°<br />

2000°<br />

3000°<br />

4000°<br />

Noyau de<br />

fer liquide<br />

5000°<br />

Fer solide<br />

5500°<br />

12 760 km<br />

<strong>la</strong> <strong>Terre</strong><br />

?<br />

Roche Roche Roche solide, solide, solide,<br />

nomm nommée nomm e e<br />

péridotite ridotite ridotite<br />

En<br />

marron,<br />

<strong>la</strong> croûte cro te<br />

(basalte,<br />

granite …)

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